Five-Year Maintenance Plans
When budgeting for the long-term is a priority, Pavement Engineering’s Five-Year Maintenance Plan is the most cost-effective option. This plan includes an evaluation of existing pavement conditions, including defects, structural capacity and pavement properties, drainage and water sources, tree root problems, site work concrete, ADA access, parking layout and traffic patterns and recommends a year-by-year maintenance budget.
We test the pavement’s structural properties using the Dynaflect pavement deflection method, which applies an oscillating load on the pavement and measures the resulting deflection. This is followed by another test, involving core sampling of native soils. We take at least two core samples, and may take more, if needed, depending on the Dynaflect test results.
From these two test methods, we determine the pavement’s structural capacity using California Test Methods 301 and 356. The two methods provide slightly different data depending on the pavement materials, layer thickness and moisture content. The test results determine the most economical design based on an annual cost analysis and other factors affecting present and future maintenance costs.
PEI also performs a visual evaluation that includes both pavement condition and factors that affect pavement performance, such as site drainage, water sources, tree root problems, load conditions, ADA parking and access requirements, and site work concrete for liability purposes.
The five-year plan summarizes all visual and physical findings in a comprehensive report, including R-value results, photographs and a site plan indicating test and photograph locations.